EP0307387A1 - Guides de tiges pour entraînements rotatifs de pompes - Google Patents

Guides de tiges pour entraînements rotatifs de pompes Download PDF

Info

Publication number
EP0307387A1
EP0307387A1 EP88890214A EP88890214A EP0307387A1 EP 0307387 A1 EP0307387 A1 EP 0307387A1 EP 88890214 A EP88890214 A EP 88890214A EP 88890214 A EP88890214 A EP 88890214A EP 0307387 A1 EP0307387 A1 EP 0307387A1
Authority
EP
European Patent Office
Prior art keywords
guide body
pump
recesses
pump rod
rod guides
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88890214A
Other languages
German (de)
English (en)
Inventor
Günter Dipl.-Ing. Hamedinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schoeller Bleckmann GmbH
Schoeller Bleckman Stahlwerke AG
Original Assignee
Schoeller Bleckmann GmbH
Schoeller Bleckman Stahlwerke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schoeller Bleckmann GmbH, Schoeller Bleckman Stahlwerke AG filed Critical Schoeller Bleckmann GmbH
Publication of EP0307387A1 publication Critical patent/EP0307387A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/144—Adaptation of piston-rods
    • F04B53/146—Piston-rod guiding arrangements

Definitions

  • the invention relates to pump rod guides for rotating pump drives on underground pipelines, in particular for crude oil feed pumps, or for conveying highly viscous to pasty media, which are arranged on a pump rod at certain intervals and serve as bearings, with recesses for the medium flow being straight or helical in the longitudinal direction are.
  • Pump rod guides are required to support the pump linkage in the piping, to protect it from vibrations and to prevent it from wearing out.
  • Versions are known which provide such bearing points on oscillating as well as on rotating pump linkages which consist of a guide body made of plastic and produced by injection molding.
  • Two or more straight or spiral grooves are provided for the flow of the medium.
  • the grooves are symmetrical and slightly widened outwards so that they can be easily removed from the injection mold. It is inevitable that the grooves have a sharp edge on the outside of the outer surface or contain too little rounding.
  • a pump linkage which has guides which are intended to avoid corrosion or erosion. This is achieved in that the guides have a main part adapted to the diameter of the bore, each of which carries a sleeve-shaped extension at its ends.
  • this training only serves to ensure that the material to be conveyed cannot be deposited on the metal of the rod by swirling.
  • the object of the invention was to create a guide body which enables floating on a carrier and liquid film and thus avoids contact between the guide body and the inner tube wall.
  • the aim is achieved in that, seen in cross section on the guide body, at least two oppositely arranged recesses are provided, the side flanks of which lie counter to the direction of rotation and approach the rest of the lateral surface remaining as a bearing point in an arc shape to form a supporting and lubricating wedge.
  • This special design of the guide body ensures that wear is reduced since there is no metallic contact with the inner wall due to the formation of the supporting and lubricating wedge.
  • the arcuate part of the recesses is designed as an Archimedean spiral and extends over an angle ⁇ of 120 °, while the angle of the bearing point is 30 °. The rest remains for the bottom of the groove.
  • a good storage of the guide body will then he is sufficient if the ratio of the diameter to the length of the guide body is 1: 1.5 to 1: 2.5, preferably 1: 2, while the slope of the recess results in a bearing point that runs uniformly around the circumference over the length of the guide body.
  • Fig. 1 shows the arrangement of a bearing in a pipeline 1, as it can be used in crude oil pumps in underground construction.
  • guide body 3 are fixed on the pump rod 2 at certain intervals. These serve to hold the pump rod 2 in position so that it does not touch the inner wall of the pipeline 1.
  • the guide body 3 has a two-start recess 5, with a remainder of the cylindrical outer surface 4 remaining for guiding the pump rod 2.
  • the pitch angle ⁇ is designed so that the outer surface 4 is helical on the inner tube wall.
  • the top view of the guide body 3 can be seen from FIG.
  • two recesses 5 are arranged, they are each opposite, ie offset by 180 °. These begin with the rounding 7 of the recess 5 and, on the other side flank, approach the lateral surface 4 as an arcuate part 6.
  • the arched part 6 designed as an Archimedean spiral is arranged counter to the direction of rotation (arrow 9), so that at Dre hung in the increasingly narrow gap 8, a support and lubrication wedge can be built. It is essential that the pitch angle ⁇ of the recesses 5 and the length of the guide body 3 are matched to one another such that the remaining lateral surface 4 can always be supported on the inner wall of the pipeline.
  • the gradual transfer of the side flank to the lateral surface 4 ensures that a supporting and lubricating wedge is always formed and thus prevents premature wear.
  • Another advantage is the fact that the angle between the arcuate part 6 and the inner tube wall remains constant when the guide body is worn. In addition, the friction is greatly reduced by the formation of a lubricating film, so that blocking cannot occur.
  • the recesses 5 and the pitch angle ⁇ are also designed so that a low pumping effect is achieved, which supports but does not exceed the performance of the feed pump, so that no congestion or slippage causes an increased loss of friction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Sliding-Contact Bearings (AREA)
EP88890214A 1987-09-10 1988-08-22 Guides de tiges pour entraînements rotatifs de pompes Withdrawn EP0307387A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0229587A AT388774B (de) 1987-09-10 1987-09-10 Pumpenstangenfuehrungen fuer drehende pumpenantriebe
AT2295/87 1987-09-10

Publications (1)

Publication Number Publication Date
EP0307387A1 true EP0307387A1 (fr) 1989-03-15

Family

ID=3531705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88890214A Withdrawn EP0307387A1 (fr) 1987-09-10 1988-08-22 Guides de tiges pour entraînements rotatifs de pompes

Country Status (2)

Country Link
EP (1) EP0307387A1 (fr)
AT (1) AT388774B (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997880A (en) * 1932-03-25 1935-04-16 Louis T Watry Guide coupling
US3194331A (en) * 1964-05-22 1965-07-13 Arnold Pipe Rental Company Drill collar with helical grooves
FR1534759A (fr) * 1967-05-17 1968-08-02 Commissariat Energie Atomique Palier à fluide hydrodynamique
AT369132B (de) * 1981-04-02 1982-12-10 Ebenhoeh Walter & Sohn Pumpgestaenge
US4610316A (en) * 1984-11-23 1986-09-09 Lor, Inc. Free flow stabilizer
US4640349A (en) * 1985-06-14 1987-02-03 Allen And Bennett, Inc. Flexible sucker rod unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997880A (en) * 1932-03-25 1935-04-16 Louis T Watry Guide coupling
US3194331A (en) * 1964-05-22 1965-07-13 Arnold Pipe Rental Company Drill collar with helical grooves
FR1534759A (fr) * 1967-05-17 1968-08-02 Commissariat Energie Atomique Palier à fluide hydrodynamique
AT369132B (de) * 1981-04-02 1982-12-10 Ebenhoeh Walter & Sohn Pumpgestaenge
US4610316A (en) * 1984-11-23 1986-09-09 Lor, Inc. Free flow stabilizer
US4640349A (en) * 1985-06-14 1987-02-03 Allen And Bennett, Inc. Flexible sucker rod unit

Also Published As

Publication number Publication date
ATA229587A (de) 1989-01-15
AT388774B (de) 1989-08-25

Similar Documents

Publication Publication Date Title
DE69007079T2 (de) Buchse für Ölfilmlager.
DE1800888A1 (de) Pumpendichtung
DE1525198B2 (de) Hydrodynamisches Gleitlager
DE2850334A1 (de) Schneckenfoerderer mit einem zwischenlager
DE3247272A1 (de) Rueckstroemsperre
EP0114590B1 (fr) Garniture d'étanchéité pour appareils à haute pression
EP0509218B1 (fr) Pompe à engrenages
EP0723081B1 (fr) Pompe à hélice pour convoyer de la matière fluide
DE102006036243A1 (de) Förderschnecke für Exzenterschneckenpumpe
DE3830813A1 (de) Zentriervorrichtung fuer pumpstangen
DE2710236C3 (de) Schraubenpumpe
DE2604002B2 (de) Schlauchpumpe
DE2632716C2 (fr)
EP0307387A1 (fr) Guides de tiges pour entraînements rotatifs de pompes
EP1219841B1 (fr) Palier lisse,notamment pour une pompe à engrenages
DE2853146C2 (de) Foliengleitlager, insbesondere für Chemiepumpen
DE2909423A1 (de) Wellenlager
DE1528963B2 (de) Zahnradpumpe
DE2103537C2 (de) Zylinderschneckentrieb
DE8814442U1 (de) Gleitringdichtung
DE2517559A1 (de) Schneckenpumpe und verfahren zur herstellung derselben
EP0513259A1 (fr) Pompe
DE1553145A1 (de) Zahnradpumpe
DE3726794C2 (de) Pumpe, insbesondere Faßpumpe, und Verfahren zur Montage einer solchen Pumpe
DE3628614C2 (de) Pumpengestängeführung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19880831

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 19910325

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920825